Staple-machine.



J. BUQKLEY.

STAPLE MACHINE.

APPLICATION FILED NOV. 5, 1908.

943,235. I Patented Dec. 14, 1909.

6 SHEETS-SHEET 2.

WITNESSES Jom'zzifixw q z, BY

J. BUGKLEY.

STAPLE MACHINE. APPLICATION IILBD NOV. 5, 1908.

943,285. Patented Dec. 14, 1909.

6 SHEETS-SHEET 3.

WITNESSES INVENTOR BY Jabn Buckley MMTTQRNEM J. BUCKLEY.

STAPLE MACHINE.

APPLICATION FILED Nov. 5, 1908.

943,235. Patented Dec. 14,1909.

6 SHEETSSHEET 4.

WXTNESSES E .INVENTOR 5%6/ dbhnfizgckiej MW BY u Q l W W ATTORNEY'LI JBUCKLEY.

STAPLE MACHINE.

APPLICATION FILED NOV. 5, 1908.

Patented Dec. 14, 1909.

6 SHEETS-SHEET 5.

WITNESS E5 INVENTOR J. BUGKLEY.

STAPLE MACHINE.

APPLICATION 1-11.31) NOV. 5, 1902.

943,235. Patented Dec. 909. GYBHEBT m e.

INVENTOR John BucMe ATTORNEYS UNITED STATES 'ATEN @FFKJ.

JOHN BUCKLEY, 0F WATERBURY, CONNECTICUT, ASSIGNOR TO CHARLES B.SCI-IDEN- MEI-IL, OF WATEBBURY, CONNECTICUT.

STAPLE-MACHINE.

To all whom it may concern:

Be it known that 1, JOHN BUOKLEY, citizen of the United States, andresident of 1V aterbury, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inStaple-Machines, of which the following is a specification.

My invention relates to an improved form of machine for automaticallyproducing wire staples, and has for its object the designing of a simpleand practical construction whereby greater quantities of staples can beproduced with it in a given period of time than by the old form ofmechanism; to construct a machine by which staples of this class can bemanufactured cheaper than has heretofore been done, and finally to planthe machine so that it can be built inexpensively and operated andmaintained at a -comparatively low figure.

With the above and other minor objects in view my invention resides andconsists in the novel construction and combination of parts shown uponthe accompanying six sheets of drawings forming a part of thisspecification, upon which similar characters of reference denote like orcorresponding parts throughout the several figures and of which,

Figure 1, shows a perspective view of my improved staple machinecomplete. Fig. 2, is a plan view of the machine. Fig. 3, is an enlargedplan view of that portion of my machine shown inclosed by dotted line 3,in Fig. 2. Fig. 4, is a similarly enlarged sectional elevation takenthrough the parts shown in Fig. 3, and on line 4-1 thereof. Fig. 5,shows a detail longitudinal sectional view of a clutch through which theseveral staple forming devices are operated. Fig. 6, is a cross sectiontaken on line 66 of Fig. 3, and showing one set of the staple foldingmechanisms. Fig. 7, is a cross sectional elevation of the wire cuttingmechanism taken on line 7-7 of Fig. 3. Fig 8, is an enlarged elevationof the wire cutting mechanism seen in Fig. 4, but shown partially insection and with wires therein. Fig. 9, is a similarly enlargedlongitudinal section taken on line 99 of Fig. 3, showing the staplefolding slides in the act of bending a wire, and Fig. 10, is a centralhorizontal longitudinal section of the slides with staple attached asshown in and taken on line 10 of Fig. 9.

As before stated my invention is designed Specification of LettersPatent.

Application filed November 5, 1908.

Patented net. 1a, 1909.

Serial No. 461,116.

with a View of producing a rapid production machine, and its eificiencyin this particular has been demonstrated by an actual production agreater number of staples per minute than of any other machine now uponthe market. This production of such a great quantity of staples in alimited time is obviously the result in part at least, of my specialdesign of construction and the novelty involved therein.

The machine comprises a centrally arranged operating shaft geared to bedriven by a common form of driving shaft and designed to be run at arate of say, 100 turns per minute and connected to operate the severalsets of wire cutting and folding devices. 1 preferably use four sets ofthese cutters and folders, each being designed to operate three timeswith each turn of the main shaft thus making 300 operations per minuteor 1200 operations per minute with all four sets. Each set of mechanismcomprises in its construction means for producing two staples with eachoperation thus making 600 staples per minute with each set, or 2%00 fromthe four sets of mechanism.

The machine is further constructed in such a way that each set ofmechanism can be started or stopped independently of the other setsmaking it possible to discontinue the use of either set at any timeshould occasion require, as for instance to sharpen or repair the dies.

Referring in detail to the characters of reference marked upon thedrawings 10 rep resents the bed of the machine which is in the form of asingle casting designed to receive the several fixed and movable partslater to be described in detail. This bed as shown is supported uponsuitable legs 11 at tached to the underside of each corner of the bed.

12 represents brackets of which there are four in number attached to thefour sides of the bed by means of screw bolts 13 and serve to supportthe reels 1 1 carrying the wire supply from which the staples areformed. There are two reels mounted upon each bracket and they arepractically alike in construction one being adjustably mounted in anupwardly disposed arm 15 of the bracket while the other is similarlysupported in a downwardly disposed arm 16 of said bracket. The reels arefree to be turned by the Wire feeding mechanism and both turn inward asper arrows indicated in Fig. 1, thereby presenting the wires a-a in linewith the feeding devices and one slightly above the other.

17 represents a driving shaft bearing tight and loose pulleys 18 and 19respectively, by means of which the shaft is driven. This shaft isjournaled in bearings 20 secured to the floor and upon the inner end ofthe shaft is mounted a beveled gear 21 which meshes with and drives alarger beveled gear 22 secured to a vertical main shaft 23. The upperend of the shaft is journaled in the bed 10 of the machine while thelower end is mounted in a bearing 2 1 attached to the floor. A balancewheel 25 is also secured to this shaft to insure a smooth and evenoperation of the machine. A small beveled gear 26 is attached to theupper portion of the said shaft 22 to engage the several gears 27 of theshafts of the respective staple forming devices, of which as beforestated there are four in number. These staple formers including theirrespective wire feeding devices are located in the top and therespective four sides of the bed as will be clearly seen from Fig. 2,and they are alike in construction, each being separately connected andoperated through the gears 26 and 27 just mentioned. The gears 27 arecontinuously driven from the driving shaft 23 through the gear 26 andare each adapted to be engaged with and disengaged from their shafts 28through a clutch 29 carried by a rod 30 slidably mounted within theshaft 28 and bearing a knob 31 whereby the said rod may be shoved in orout and its clutch 29 made to engage with or disengage from the slot 32of the said gear 27, see Fig. 5. By this means the several sets ofstaple forming mechanisms may be independently thrown in or out asoccasion may require.

Each of the wire feeding mechanisms as designed serve to simultaneouslyfeed in two wires one of which is arranged above the other and wherebytwo staples may be simultaneously formed by the cutting and folding diesand slides later to be described. This mechanism is obviously locatedsubstantially in line with the adjacent peripheral surfaces of the reels14: mounted in the bracket 12 and include not only means for drawing thewire inward from the reels but also devices for straightening the wire.This feeding mechanism is supported upon a bracket 33 attached to thebed of the machine by screws 34t and is operated through the bevel gear35 attached to the shaft 28 and meshing with and driving the bevel gear36 secured to a short shaft journaled in a bearing 37 and carrying agear 38. The gear 38 meshes with and drives a pair of gears 39oppositely arranged and mounted upon separate studs 10 secured to thelower portion of bracket 33 and to the upper side of each of these gears39 is secured a roll 41 having an enlargement 42 upon one side that isprovided with an upper and lower groove to engage the wires (4. Thesegears and rolls would be so arranged and timed as to insure the ointoperation of the two enlargements so as to cause them to register witheach rotation, thus jointly gripping the two wires and drawing apredetermined length of them forward and through the straightening rolls13 mounted within the box 4 1 formed in the outer end of the bracket 33.The straightening rolls upon one side are mounted in movable bearingsadapted to be adjusted by means of screws 15. A die 46 having twolongitudinal holes therethrough is secured within the bed in line withthe feeding devices by means of a set screw 17. The transverse centralinner end portion of this die (see Fig. 4) is cut away to receive theoperative end of the cutting slide 48 and whereby the blank Z) issevered. The upper and lower surfaces intermediate of the end of the die16 and the slide 418 are at an acute angle to the line of movement ofthe wire thus serving to cut the same on the bias whereby producingsharpened ends 0 to the wires and to form points for the staple when thesame is completed. The said slide 48 is mounted in a suitable pocket ofthe bed of the machine and is covered by a removable plate as), beingnormally held outward by the spring 50 one end of which is attached to aprojecting pin of the slide and the other end to the post 51. The slideis thus adapted to reciprorate being shoved inward to out both wiresagainst the action of the said spring 50 through the medium of avertically disposed lever pivoted in a depending bracket 53 of the bedthe upper end of said lever being shaped to engage a recess in theslide, while the lower end is provided with a roll 5-1 to engage a cam55 mounted upon the shaft 28.

The wire is obviously fed inward past the cutting dies preparatory tothe cutting operation with the result that when the same has beensevered the two blanks b are disposed crosswise in grooves across theface of the slide 56 (see Fig. 8,) and intermediate of it and the maleslide 57 whereby it is held preparatory to the closing operation, eachof these slides 56 and 57 are provided with transverse grooves 58 and 59respectively, in their operative end portions which register with eachother and serve to receive and support the wires as they are fed throughfrom the cutting dies. The slides are mounted in suitable pockets of thebed the one 56 being covered by the before mentioned plate 19 and theother 57 by a similar plate 60. They are also provided respectively withsprings 61 and 62 intermediate of pins of the slides and the posts 51before mentioned. These springs normally hold the slides outward, whilea double acting cam 63 serves to throw them in through the medium of thevertically disposed levers (A journaled upon depending brackets 65 ofthe bed 10 and bearing rolls 66 to engage the opposite faces of the camin a manner to be operated by the oppositely located lugs 67 of the saidcam 63. The operative end of the slide 56 is provided with a centrallongitudinal opening 68 which communicates with a large opening 69extending through the slide vertically. The first mentioned opening 68serves to receive the small end portion of the slide 57 which whenshoved therein serves to bend the blanks 6 intermediate of their lengthto form them into U shaped staples d (see Figs. 9 and 10). After theblanks are bent in this manner and the staples formed and shoved throughthe longitudinal opening, the side portions of such staples naturallyspring out a little so that when the slides are drawn back the ends ofthe staples engage the sides of the opening 69 and are stripped off andpermitted to drop therefrom to the floor or in a suitable receptacleplaced therebeneath to receive them. It will thus be seen that thefolding of the blank is accomplished by a joint movement of the twoslides both of which move in and out simultaneously past the line of thewire feed, thereby not only dividing the strain to the operations moreevenly, but also making it possible to oper ate the'machine faster.

From the foregoing it will be noted that when in complete operationthere are four pairs of wires being fed into the machine, each of whichproduces a blank with the ends out upon the bias to form points for thestaples, likewise that the respective pairs of blanks are simultaneouslyfolded by means of the slides before mentioned and then dropped from themachine.

Having thus described my invention what I claim and desire to secure byLetters Patent is 1. In a staple forming machine, the combination with ashaft, of gear and roll connections for simultaneously feeding twowires, a stationary die having two Wire passages therethrough, a cuttingslide to operate in conjunction with the die, a pair of folding slidesboth adapted to receive the two blanks when severed, one slide having acentral recess in its end and the other a reduced portion to operate inthe recess to fold and shove the blank therethrough to form a staple.

2. In a staple forming machine, the combination with a shaft, of wirefeeding devices connected to be operated by the shaft, forsimultaneously feeding a pair of wires, a fixed and movable die forsimultaneously cutting a pair of blanks from the two wires,

a cam upon the shaft with connections for operating the sliding die, asecond pair of slides for gripping the blanks and folding the staples,and cams mounted upon the shaft and connections for operating the twoslides whereby the same are simultaneously operated.

3. In a staple machine, the combination with feeding and cuttingmechanism, of a pair of folding slides, one constituting a male and theother a female slide, each having a pair of transverse grooves in theirend faces to receive a pair of wire blanks, an opening in the end of oneof the slides through which the other slide operates and forces the saidblanks to fold the staple and having an enlargement of the opening within the inner portion of slide whereby the two staples are released fromthe dies and are discharged from the machine.

4. In a staple forming machine, the com bination with a driving shaft,of wire feeding devices connected therewith for simultaneously feeding apair of wires, a fixed and movable die for simultaneously cutting a pairof blanks from the two wires, a male and female holding slide adapted toreceive, grip and bend a pair of straight wire blanks into U shapedstaples, said slides both having a pair of cross and longitudinalgrooves in their ends and side portions to receive and support thestaple blanks.

5. In a staple forming machine, the combination with a main drivingshaft, of wire feeding mechanism for simultaneously feeding forward twostrands of wire, a fixed die having two longitudinal wire passagestherein and a transverse recess across its end portion, a cutting slidefitted to engage the recess and adapted to operate at a right angle tothe line of movement of the wire to cut therefrom two wire blanks, anda. male and female die adapted to receive the said blanks and tosimultaneously form two staples therefrom.

Signed at Vaterbury, in the county of New Haven, and State ofConnecticut this 29th day of October, A. D., 1908.

JOHN BUCKLEY.

Witnesses:

ROBERT A. Lown, C. B. SOHOENMEHL.

